Hello,

In socketcan 1.7.0,CanFrame::new(...) had parameters as options to indicate that the canframe built was intended as an Error frame. See:https://docs.rs/socketcan/1.7.0/socketcan/struct.CANFrame.html#method.new

In 2.0.0, it appears that we cannot constructCanErrorFrames and that this is intentionally not supported. See:https://docs.rs/socketcan/2.0.0/src/socketcan/frame.rs.html#752-754

For my application, I want to mock something that returnsCanFrame data.
I want to be able to createCanErrorFrames to test our error cases.

How would I go about creating a CanErrorFrame for the purposes of mocking in tests? This is currently a requirement for me to move my app from 1.7.0 to 2.0.0.